Self-calibrating multi-directional security luminaire and associated methods

ABSTRACT

A luminaire may include a wall mount and a driver circuit housing connected to the wall mount. The luminaire may also include a camera housing connected to the driver circuit housing, a light source housing connected to the camera housing, and a light source array that includes a plurality of light sources carried by the light source housing. The luminaire may include a prism, a heat sink in thermal communication with the light source array, and a camera carried by the camera housing. The luminaire may also include a sensor and a driver circuit carried by the driver circuit housing. The camera and/or the sensor may be configured to detect the presence and vicinity of an object in the target area. The light sources may be configured to emit light to illuminate the vicinity of the object sensed in the target area.

RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional PatentApplication Ser. No. 61/644,152 titled SELF-CALIBRATINGMULTI-DIRECTIONAL SECURITY LUMINAIRE AND ASSOCIATED METHODS, filed onMay 8, 2012, the entire contents of which are incorporated herein byreference. This application is also related to U.S. patent applicationSer. No. 13/234,371 filed Sep. 16, 2011, titled COLOR CONVERSIONOCCLUSION AND ASSOCIATED METHODS, U.S. patent application Ser. No.13/107,928 filed May 15, 2011, titled HIGH EFFICACY LIGHTING SIGNALCONVERTER AND ASSOCIATED METHODS, U.S. patent application Ser. No.13/403,531 filed Feb. 23, 2012, titled CONFIGURABLE ENVIRONMENTALCONDITION SENSING LUMINAIRE, SYSTEM AND ASSOCIATED METHODS, U.S. patentapplication Ser. No. 13/464,292 filed May 4, 2012, titled INTELLIGENTSECURITY LIGHT AND ASSOCIATED METHODS, and U.S. patent application Ser.No. 13/464,345 filed May 4, 2012, titled OCCUPANCY SENSOR AND ASSOCIATEDMETHODS, and U.S. Provisional Patent Application Ser. No. 61/777,585filed Mar. 12, 2013 titled EDGE LIT LIGHTING DEVICE, the entire contentsof each of which are incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to the field of lighting devices and, morespecifically, to lighting devices capable of self-calibrating brightnessand directional lighting.

BACKGROUND OF THE INVENTION

Current security-based luminaires have several problems associated withthem. If they are activated too brightly all the time, they areinefficient. If they are not bright enough, trespassers may not bedeterred, and security cameras may be rendered useless. However,environmental lighting changes, and luminaires may not adapt to thechanging environment, rendering them even more inefficient. Further, ifsecurity lights are activated by an intruder, floodlights may lightareas that do not need to be lit as well as areas that need lighting tocapture sight of the trespasser, thereby wasting energy. If the lightsare not properly positioned, the trespasser may still evade securitymeasures. Previous attempted solutions included actuating parts to movea security light, but these prove inefficient, as actuating partsrequire more power. A need exists for a luminaire capable of adaptingautomatically to its environment for security purposes. Additionally, aneed exists for a security luminaire that may selectively light adirectional area when activated, while eliminating the need foractuating parts.

SUMMARY OF THE INVENTION

With the foregoing in mind, the present invention is related to aluminaire able to adjust its output light to a minimum effective value.Such a luminaire may allow for increased energy efficiency bynecessarily using a minimum required power amount. Additionally, thepresent invention is related to a luminaire capable of directing itsoutput light without a requirement for actuating parts.

These and other features, benefits and advantages are provided by aluminaire which may include a wall mount and a driver circuit housingconnected to the wall mount. The luminaire may also include a camerahousing connected to the driver circuit housing, a light source housingconnected to the camera housing, a light source array carried by thelight source housing, where the light source array includes a pluralityof light sources. The luminaire may further include a prism carried bythe light source housing that is adjacent to the light source array, aheat sink in thermal communication with the light source array that isalso carried by the light source housing, and a camera carried by thecamera housing. The luminaire may also include a sensor carried by thecamera housing and a driver circuit carried by the driver circuithousing. The camera and/or the sensor may be configured to detect thepresence and vicinity of an object in the target area and at least oneof the light sources in the plurality of light sources may be configuredto emit light to illuminate the vicinity of the object sensed in thetarget area.

The prism may be configured to direct the light emitted from theplurality of light sources in a direction of the object sensed in thetarget area. The luminaire may also include a light source which is alight-emitting diode (LED).

The luminaire may include light sources in the light source array whichmay be configured to emit light in multiple directions so that uponsensing an object in the target area, a selected at least one lightsource is illuminable to emit light in the direction of the sensedobject. The luminaire may also include a controller. The sensor andcamera may generate data based on a sensed condition and the controllermay operate the light source array based upon the data and establishedparameters.

The luminaire may further include a time-keeping device in communicationwith the controller, where the time-keeping device may be configured togenerate timing data to operate the light source array based on thetiming data. The luminaire may also include a network connection incommunication with the controller, where data may be transmittablethrough the network connection and the light source array may beoperable so that it is responsive to the data transmitted through thenetwork. The data may be related to detection of an object in the targetarea, where the data may be transmitted upon detection of the object inthe target area.

The luminaire may be programmable to recognize a defined object so asnot to illuminate the target area upon detecting the defined object. Thebrightness of the light emitted from the light source array may bevariable depending on at least one of the time of day, size of theobject detected in the target area, and detection of a malfunction in atleast one of the camera and the sensor.

The luminaire may further include a light source housing which mayinclude a first light source housing and a second light source housing.The light source array may include a first light source array includinga plurality of light sources carried by the first light source housingand a second light source array including a plurality of light sourcescarried by the second light source housing. The prism may comprise afirst prism carried by the first light source housing adjacent to thefirst light source array and a second prism carried by the second lightsource housing adjacent to the second light source array. The heat sinkmay include a first heat sink in thermal communication with the firstlight source array and carried by the first light source housing and asecond heat sink in thermal communication with the second light sourcearray and carried by the second light source housing.

The camera housing may include a first camera housing associated withthe first light source housing and a second camera housing associatedwith the second light source housing. The camera may include a firstcamera carried by the first camera housing and a second camera carriedby the second camp housing where the sensor includes a first sensorcarried by the first camera housing and a second sensor carried by thesecond camera housing. The first and second cameras and the first andsecond sensors may be configured to detect the presence and vicinity ofan object in a target area. The first and second light source arrays maybe positioned within the first and second light source housingsrespectively to minimize the overlap of the light emitted from eachlight source array.

A method aspect of the invention may include illuminating a target areaupon sensing an object using a luminaire. The luminaire may include awall mount, a driver circuit housing connected to the wall mount, acamera housing connected to the driver circuit housing, a light sourcehousing connected to the camera housing, a light source array carried bythe light source housing, the light source including a plurality oflight sources, a prism carried by the light source housing adjacent tothe light source array, a heat sink in thermal communication with thelight source array and carried by the light source housing, a cameracarried by the camera housing, a sensor carried by the camera housingand a driver circuit carried by the driver circuit housing. The methodmay include defining parameters for a defined object and detecting anobject to define a detected object. The method may further includedetermining if the detected object is a defined object and turning onthe light source array in the direction of the detected object if thedetected object is a defined object for which illumination is desired.The method may further include determining if the detected object isstill within the vicinity of the luminaire and turning off the lightsource array if the detected object is no longer within the vicinity ofthe luminaire.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a luminaire according to an embodimentof the present invention.

FIG. 2 is a top plan view of the luminaire of FIG. 1 according to anembodiment of the present invention.

FIG. 3 is a bottom plan view of the luminaire of FIG. 1.

FIG. 4 is a front elevation view of the luminaire of FIG. 1.

FIG. 5 is a side elevation view of the luminaire of FIG.

FIG. 6 is an exploded perspective view of the luminaire of FIG. 1.

FIG. 7A is a schematic view of an array of LEDs to be used in aluminaire according to an embodiment of the present invention.

FIG. 7B is an alternate schematic view of an array of LEDs to be used ina luminaire according to an embodiment of the present invention.

FIG. 8 is a schematic view of an array of prisms overlaying an array ofLEDs to be used in a luminaire according to an embodiment of the presentinvention.

FIG. 9 is a schematic side view of the array of prisms overlaying thearray of LEDs to be used in a luminaire as shown in FIG. 1.

FIG. 10 is a flowchart demonstrating the operation of a luminaireaccording to an embodiment of the present invention allowing for amanual brightness level adjustment.

FIG. 11 is a flowchart demonstrating the operation of a luminaireaccording to an embodiment of the present invention allowing for anautomatic brightness level adjustment.

FIG. 12 is a flowchart demonstrating an alternate embodiment ofoperation of a luminaire according to an embodiment of the presentinvention allowing for an automatic brightness level adjustment.

FIG. 13 is a schematic depiction of a model computing device accordingto an embodiment of the present invention.

FIG. 14 is a schematic model of an exemplary user interface according toan embodiment of the present invention.

FIG. 15 is a perspective view of a luminaire according to an alternativeembodiment of this invention.

FIG. 16 is a perspective view of a luminaire according to a furtherembodiment of the invention.

FIG. 17 is a flowchart demonstrating operation of the luminaireaccording to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention will now be described more fully hereinafter withreference to the accompanying drawings, in which preferred embodimentsof the invention are shown. This invention may, however, be embodied inmany different forms and should not be construed as limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art. Those ofordinary skill in the art realize that the following descriptions of theembodiments of the present invention are illustrative and are notintended to be limiting in any way. Other embodiments of the presentinvention will readily suggest themselves to such skilled persons havingthe benefit of this disclosure. Like numbers refer to like elementsthroughout.

In this detailed description of the present invention, a person skilledin the art should note that directional terms, such as “above,” “below,”“upper,” “lower,” and other like terms are used for the convenience ofthe reader in reference to the drawings. Also, a person skilled in theart should notice this description may contain other terminology toconvey position, orientation, and direction without departing from theprinciples of the present invention.

Additionally, in the following detailed description, reference may bemade to the driving of light-emitting diodes, or LEDs. A person of skillin the art will appreciate that the use of LEDs within this disclosureis not intended to be limited to the any specific form of LED, andshould be read to apply to light emitting semiconductors in general.Accordingly, skilled artisans should not view the following disclosureas limited to the any particular light emitting semiconductor device,and should read the following disclosure broadly with respect to thesame.

Referring now to FIGS. 1-13, a self-calibrating multi-directionalluminaire 10 will be discussed. As shown in FIG. 1, the luminaire 10 mayinclude a camera 12, a wall mount 14, a heat sink 16, a sensor 18, andLED housings 20. The terms LED housing and light housing are usedinterchangeably. Referring additionally to FIGS. 2 and 3, the heatsink(s) 16 may be seen in greater detail in relation to the wall mount14, the LED housing 20, and the camera 12 of the luminaire 10. Referringalso to FIGS. 4 and 5, the heat sinks 16 may be positioned on the backside of the luminaire 10 generally facing the wall mount 14 andgenerally opposite the LED housing 20, the camera 12, and the sensor 18.A skilled artisan will appreciate, after having had the benefit of thisdisclosure, that the heat sinks 16 may be positioned on the luminaire 10in any number of ways that may dissipate heat in order to maximizeefficiency.

Referring now to FIG. 6, a luminaire 10 is presented in greater detail.The LED housings 20 may contain a prism 22, which may overlie an LEDarray 24. The terms LED array and light source array are usedinterchangeably, and the terms LED housing and light source housing arealso used interchangeably. The light source array 24 may include aplurality of light sources. The LED array 24 may be backed by a heatsink 16 and may be integrated into the light source housing 20.Additionally, the arm 28, may connect the LED housing 20 to the rest ofthe luminaire 10. The camera 12 and the sensor 18 may be housed incamera housing 30, which, along with the arm 28, may connect to a drivercircuit housing 36. The driver circuit housing(s) 36 may be configuredto house a driver circuit 38, and may be configured to be positionedadjacent to the wall mounting such that the driver circuit housing 36backs up to the wall mounting 14. Many additional configurations of theluminaire 10 may readily come to mind of one skilled in the art havinghad the benefit of this disclosure, including an LED housing without aprism 22, and are included within the scope of the invention. The LEDarray 24 may be implemented with a plurality of LEDs or a plurality ofany light source known in the art to a skilled artisan.

In some embodiments of the present invention, the luminaire 10 mayfurther include a light source housing which may include a first lightsource housing and a second light source housing, each of which may beconfigured similar to the light source housing 20 described hereinabove.The light source array 24 may include a first light source array whichincludes a plurality of light sources carried by the first light sourcehousing and a second light source array which includes a plurality oflight sources carried by the second light source housing, each of whichmay be configured similar to the light source array 24 as describedhereinabove. The prism 22 may comprise a first prism carried by thefirst light source housing adjacent to the first light source array anda second prism carried by the second light source housing adjacent tothe second light source array, each of which may be configured similarto the prism 22 as described hereinabove.

The heat sink 16 may include a first heat sink in thermal communicationwith the first light source array and carried by the first light sourcehousing and a second heat sink in thermal communication with the secondlight source array and carried by the second light source housing, eachof which may be configured similar to the heat sink 16 as describedhereinabove. The camera housing 30 may include a first camera housingassociated with the first light source housing and a second camerahousing associated with the second light source housing, each of whichmay be configured similar to the camera housing 30 as describedhereinabove.

The camera 12 may include a first camera carried by the first camerahousing and a second camera carried by the second camera housing wherethe sensor 18 includes a first sensor carried by the first camerahousing and a second sensor carried by the second camera housing, eachof which may be configured similar to the camera 12 and the sensor 18,respectively, as described hereinabove. The first and second cameras 12a, 12 b and the first and second sensors 18 a, 18 b may be configured todetect the presence and vicinity of an object in a target area. Types ofcameras that may be used as either of the first and second cameras 12 a,12 b include, but is not limited to, CCD cameras, CMOS cameras, digitalimaging cameras, and digital video cameras. Types of sensors that may beused as either of the first and second sensors 18 a, 18 b, includes, butis not limited to, light sensors, thermal sensors, infrared sensors,motion sensors, ultrasonic sensors, microwave sensors, tomographicsensors, and the like. The first and second light source arrays may bepositioned within the first and second light source housingsrespectively to minimize the overlap of the light emitted from eachlight source array. Alternatively, the first and second light sourcearrays may be positioned within the first and second light sourcehousings respectively to optimize the illumination of the target area.

Some embodiments of the luminaire 10 according to the present inventionmay include multiple elements. For example, a luminaire may includemultiple light source arrays including a plurality of light sources,multiple controllers, multiple cameras, multiple sensors, multiple heatsinks and the like.

Referring to FIG. 15, an alternative embodiment of the invention isillustrated. The luminaire 40 according to another embodiment of thepresent invention may include a first light source housing 20 a and asecond light source housing 20 b. The luminaire 40 may also includeother elements included in the luminaire 10 of the first embodiment ofthe present invention, described hereinabove, such as a driver circuithousing which includes a driver circuit, a controller, an arm and a wallmount. Accordingly, and for the sake of clarity, it is to be understood,and as will be discussed in greater detail below, that the first lightsource housing 20 a and the second light source housing 20 b areconnected to one another by way of the arm and wall mount that aredescribed (but not shown in FIG. 15) above in the embodiment of theluminaire 10 illustrated and described, for example, in FIGS. 1 and 2.

Although some of the elements may not be illustrated in FIG. 15.A, thefirst light source array (not shown) may be carried by the first lightsource housing 20 a where the first light source array may include aplurality of light sources. The luminaire 40 may further include asecond light source array (not shown) which may be carried by the secondlight source housing 20 b where the second light source array (notshown) may include a plurality of light sources. The first prism (notshown) which may be carried by the first light source housing 20 a maybe adjacent to the first light source array and the second prism (notshown), which may be carried by the second light source housing 20 b maybe adjacent to the second light source array.

A first heat sink (not shown) may be in thermal communication with thefirst light source array and carried by the first light source housing20 a. A second heat sink 16 b may be in thermal communication with thesecond light source array and carried by the second light source housing20 b. The first camera 12 a and first sensor 18 a may be carried by thefirst camera housing 20 a and the second camera 12 b and second sensor18 b may be carried by the second camera housing 20 b. A controller (notshown) may be in communication with the first and second cameras 12 a,12 b and the first and second sensors 18 a, 18 b where at least thefirst camera 12 a, second camera 12 b, first sensor 18 a and secondsensor 18 b may be configured to detect presence and vicinity of anobject in a target area. At least one light source in the plurality oflight sources of the first and second light source array may beconfigured to emit light to illuminate the vicinity of the object sensedin the target area. At least one of the first and second cameras 12 a,12 b or first and second sensors 18 a, 18 b may generate data based on asensed condition and the controller may operate any of the plurality oflight sources from the first and second light source array based uponthe data and established parameters.

Referring to FIG. 16, yet another embodiment of the invention isillustrated. The luminaire 60 illustrated in FIG. 16 may include cameras61, optics 62, arms 63, heat sinks 65, wall mount 66 and LEDs 67. Theluminaire 60 utilizes edge lighting where the LEDs 67 are embedded atthe base of the optic 62. The optic 62 is designed with ridges that aredesigned to redirect light from the LED 67 outward. The luminaire 60 isdesigned to function similarly to luminaire 10 and 40 previouslydescribed.

Referring again back to FIG. 6, detection of an object in the targetarea may be achieved using the camera 12, the sensor 18 or somecombination of the camera and sensor of the luminaire 10 according to anembodiment of the present invention. The terms security light andluminaire may be used interchangeably herein. More particularly, thoseskilled in the art will appreciate that the camera 12 of the securitylight 10 may be used in connection with sensor 18 for sensing objectsthat may enter a target area. Alternately, however, the sensors 18 maybe provided by any type of motion detecting device. Both the sensor 18and the camera 12 may be positioned in communication with a controllerand may generate data based on a sensed condition. The data that isgenerated may be processed in order to operate the security light 10based on certain parameters or rules.

The parameters may define how long the luminaire is activated dependingupon the size of the object detected, the time of the day and the typeof the object detected. The controller may also utilize the parametersso that the amount of time that the target area is illuminated may beresponsive to the parameters. The parameters may be set by a user or thecontroller may utilize default settings that may be set by a securitycompany or a factory upon manufacture. When an object is sensed in thetarget area, a light source in the plurality of light sources may beconfigured to emit light to illuminate the vicinity of the object sensedin the target area. In an embodiment of the invention, such as isillustrated, for example, in FIG. 15, skilled artisans may appreciatethat the plurality of cameras and sensors may operate in concert and/orseparately so that the luminaire 40 may detect or sense objects in thetarget area. Skilled artisans may also appreciate that a controller maybe utilized to operate the plurality of light source arrays either inconcert and/or separately responsive to data regarding sensed objects inthe target area.

Accordingly, the light source array 24 of the security light 10according to an embodiment of the present invention may be set to an onstate based on detection of an object, or movement, within the targetarea. This may be defined as an event that occurs within the targetarea. Further embodiments of the present invention contemplate that thesecurity light 10 may be moved to an off state after a period of nomovement, after an object is no longer detected in the target area, orafter the previously sensed condition is no longer sensed. It is readilycontemplated that certain objects may move in and out of the target areawithout the necessity of moving the light source of the security light10 to the on state. For example, the present invention contemplates thatvarious creatures of nature, e.g., vermin, may move in and out of thetarget area without the need to move the light source 24 of the securitylight 10 to the on state. This advantageously enhances efficiency of thesecurity light 10 according to an embodiment of the present invention.

The present invention also contemplates that a time-keeping device maybe positioned in communication with the controller. Accordingly, in someembodiments, timing data may be transmitted to the controller so thatoperation of the light source 24 of the security light 10 may becontrolled based on the timing data. For example, the light source 24may be turned to the on state only after an object is detected in thetarget area for a period of time that exceeds a threshold period oftime. This too may be defined as an event, i.e., an event may include atiming component. Accordingly, this advantageously provides the securitylight 10 according to an embodiment of the present invention with adelay feature that provides for a delay before moving the light source24 of the security light 10 to the on state until an object has beendetected in the target area for a period of time that exceeds thethreshold time, or until motion is detected in the target area for asimilar period of time. Similarly, the present invention contemplatesthat after a period of time of detecting no motion, or object located inthe target area, the light source 24 that may be moved to the off state.Further, the time-keeping device may be used to keep the light source 24in the on state for a fixed period of time. In some embodiments, thetime-keeping device may be an atomic clock.

It is also contemplated that the target area may be manipulated. Morespecifically, the target area may be user selected. Further, it iscontemplated that the target area may be manipulated remotely throughcommunication with the network. A user interface may be used to move thetarget area, change the size of the target area, or take any number offactors into account when sensing movement or detecting presence of anobject in the target area. For example, it is contemplated that thetarget area may have a first size during a first period of time, and asecond size during an alternate period of time. Similarly, it iscontemplated that the target area sensed by the sensor 18 of thesecurity light 10 may be split into an array of target areas.Accordingly, the security light 10 according to an embodiment of thepresent invention contemplates that various portions of the array oftarget areas may be activated (or selectively activated) based on anynumber of factors including, but not limited to, user preference,timing, or any other number of factors that may be readily understood bythe skilled artisan after having had the benefit of reading thisdisclosure.

Referring now to FIGS. 7A-9, methods of achieving selective directionallighting according to embodiments of the present invention will now bediscussed. Referring now to FIGS. 7A and 7B, arrays of LEDs 24 arepresented. As shown in both figures, the LEDs 24 may be positioned in avariety of directions, including straight ahead, and may be selectivelyactivated to emit light in a particular direction towards a detectedobject, if an object is detected in a target area. Additionally, a usermay turn on the LEDs 24 using a user interface on a remote device 35,which will be discussed in greater detail below.

In some embodiments, and with reference to FIGS. 8 and 9, an array ofLEDs may be overlaid with a plurality of prisms 22. In this embodiment,the LEDs may be facing a single direction, but may have their lightdirected in a plurality of directions by the plurality of prisms 22, asshown in FIG. 8. When an object is sensed in the target area, certainLEDs of the LED array may be operated to emit light that, when directedby the prism 22 emits light in the direction of the object sensed in thetarget area. The overlaying of the prisms 22 on the array of LEDs 24 isperhaps best illustrated in FIG. 9. The configurations shown in FIGS.7A-9 are, of course, exemplary in nature, and may be rearranged whilestill accomplishing the goals, features, and objectives of the presentinvention.

Accordingly, the security light 10 according to an embodiment of thepresent invention provides directional illumination of portions of thetarget area based on the location within the target area where themotion is detected, or based on the location within the target areawhere an object is detected. As indicated above, the target area may bedivided into an array of target areas, i.e., the target area may includemultiple target areas. Each target area may be directed to a specificgeographic location within the sensing area. It is contemplated that thearray of target areas may overlap with one another, i.e., adjacenttarget areas may overlap with one another to advantageously ensure thatthere is not an area within the target area that goes undetected. Asperhaps best illustrated in FIGS. 7A-7B, the bank of LEDs may be splitinto an array of LEDs. As illustrated in FIG. 7A, the array of LEDs maybe positioned to face in different directions, i.e., differentorientations. Accordingly, upon sensing movement or detecting thepresence of an object in a particular portion of the target area, theLED in the array of LEDs facing that particular direction may beilluminated. The security light 10 according to an embodiment of thepresent invention advantageously illuminates the portion of the targetarea where the motion is detected, or where an object may be detected,i.e., where the event has occurred.

This advantageously increases the efficiency of the security light 10 byonly illuminating the area within the target area where an event hasbeen sensed. An event may, for example, be defined by an object locatedwithin a portion of the target area, or movement within the target area.As indicated above, the sensor may be in communication with thetime-keeping device to provide for a delay to allow for the events to beclassified as an event suitable for moving the light source 24 of thesecurity light 10 from the off state to the on state. In other words,the light source 24 of the security light 10 is only illuminated in thedirection where the event occurred if it is determined that the lightsource 24 should be activated, i.e., upon determining that an event hasactually occurred.

The processor can process the data received from the camera 12 and/orthe sensor 18 so that other LEDs of the array of LEDs may be activatedto illuminate different portions of the target area if it is determinedthat the object has moved from one portion of the target area to anotherportion of the target area. In such an embodiment, it is contemplatedthat the portion of the target area that was initially illuminated mayremain illuminated as another portion of the target area is illuminatedby at least one of the LEDs in the array of LEDs 24. In someembodiments, it is also contemplated that the initial LED that was movedto the on state to illuminate the portion of the target area where theevent originally occurred may be moved to the off state upon sensingthat an event is no longer occurring in that portion of the target area.Furthermore, in some embodiments, where the detected object isdetermined to be in motion, an anticipated future location of thedetected object may be estimated by the processor, and at least one ofthe LEDs of the array of LEDs may be illuminated to emit light in thedirection of the anticipated future location. The embodiment of the LEDs24 illustrated in FIG. 7B is another arrangement of the array of LEDsthat advantageously provides for illumination of the target area in manydifferent directions. Those skilled in the art will appreciate that theconfigurations of the array of LEDs illustrated in FIGS. 7A-7B are notmeant to be limiting in any way but, instead, are provided for exemplarypurposes.

As perhaps best illustrated in FIG. 8, the LEDs may all be similarlypositioned, and the direction in which the light from the light source24 of the security light 10 is emitted may be manipulated using a prism22. The prism 22 may include an array of directional prisms positionedover the LEDs. Accordingly, upon detecting an event that occurs within aparticular portion of the target area, the LEDs 24 behind a prism 22facing in the direction of the target area where the event was detectedmay be illuminated, thereby emitting light in the direction of thetarget area where the event was detected. Again, this advantageouslyenhances the efficiency of the security light 10 according to anembodiment of the present invention.

Referring now to FIGS. 10-12, calibrating aspects of a security light asdescribed herein above of an embodiment of will be discussed in greaterdetail. For instance, and with reference to flowchart 42 of FIG. 10,from the start (Block 44) a user may select a brightness level using aremote device (Block 46). The sensor 18 may check if the camera 12 isfunctioning properly at Block 48, and may increase the brightness atBlock 50 if the camera 12 is not functioning properly. Once thebrightness is increased, the sensor 18 may again check if the camera 12is functioning properly at Block 48. If the camera 12 is functioningproperly at Block 48, the process may end at Block 52. This prevents auser from selecting a brightness that is below a minimum brightnessrequirement for the camera 12 to work properly. More specifically, inorder for the security camera 12 of the luminaire 10 according to anembodiment of the present invention to properly function, a certainamount of light must be present. If, however, there is more than theminimum amount of light necessary for the security camera to function,then the security light 10 may be considered somewhat inefficient or,more accurately, not as efficient as it possibly can be. Accordingly,the method set forth in flowchart 42 of FIG. 10 indicates one way inwhich a minimum brightness level of the light source of the securitylight 12 may be set. That is, the method set forth in FIG. 10demonstrates a manual method of increasing and decreasing the brightnessof the light source 24 of the security light 12 according to anembodiment of the present invention to ensure that the security light 12is operating as efficiently as possible.

Referring now to flowchart 60 of FIG. 11, a method of self-calibrating asecurity light as described hereinabove according to an embodiment ofthe present invention will be discussed. As will be discussed in greaterdetail below, this embodiment of operating the security light 12advantageously eliminates the need for initial user input. From thestart (Block 62), the sensor 18 may detect that the camera is notfunctioning properly at Block 64. This may be caused by any number ofreasons, but the one of the problems that the various embodiments of thepresent invention aims to solve is a malfunctioning of the camera due tobrightness levels not being high enough. Accordingly, the brightness maythen be increased (Block 66), and the sensor 18 may check if the camera12 is functioning properly at Block 68. If the camera 12 is still notfunctioning properly, the brightness may be increased again at Block 66.If, however, the camera 12 is functioning properly at Block 68, then themethod may end at Block 69. This method may prevent the light source onthe security light 10 from becoming too dim for the camera 12 tofunction.

The function described with reference to the flow chart 60 illustratedin FIG. 11 may be carried out at any time. For example, theself-calibrating function may be carried out as an initializationprocess when the security light 10 is first installed. Similarly, theself-calibrating function may be carried out as ambient light levels inthe environment where the security light is positioned are sensed. Thevarious embodiments of the present invention also contemplate that theself-calibrating function may be carried out based on a prompt, orcommand, received from a user. This prompt or command may be receivedfrom a user device. More particularly, the user device may, for example,be a computer, cell phone, smart phone, tablet, PDA or the like. In suchan embodiment of the security light 10 according to an embodiment of thepresent invention, the security light may be positioned in communicationwith a network, and may receive signals or data to operate through thenetwork. The data may be related to detection of an object in the targetarea and may be transmitted upon detection of an object in the targetarea. In some embodiments, the data may be transmitted to a cloud sothat remote computerized devices may be able to view and monitor theactivity of the luminaire. The data may include still images, video,audio and time stamps or any other information as known to a skilledartisan. The data may also be transmitted to a security company and/ordirectly to a user device. Transmission of the data to the securitycompany and/or user device may occur when a defined object is detectedin the target area for a period of time as set in the parameters.Additional details regarding communication of signals to the security 10can be found in U.S. Provisional Patent Application Ser. No. 61/486,314titled Wireless Lighting Device and Associated Methods, as well as U.S.patent application Ser. No. 13/463,020 titled Wireless Pairing Systemand Associated Methods and U.S. patent application Ser. No. 13/269,222titled Wavelength Sensing Light Emitting Semiconductor and AssociatedMethods, the entire contents of each of which are incorporated herein byreference

The luminaire 10 may be programmed to recognize a defined object and maynot illuminate a target area upon detecting the defined object.Additionally, the luminaire may be programmed to modify its timingsequence when a defined object is sensed so that the lights may stay onlonger or shorter than a predefined default setting as determined by theuser for a particular object. A defined object may be any object thatmay be defined by a user as known to skilled artisans. A defined objectmay vary in size from a small rodents and vermin to larger animals suchas deer and the like. A defined object may also include a vehicle. In anembodiment, the luminaire 10 may be equipped to identify indicia andaccord significance to certain indicia on an object such as a licenseplate or name plate.

Various embodiments of the security light 10 according to the presentinvention contemplate that the sensor 18 may be provided by the camera12, and that operation of the calibrating feature can be carried outbased on sensing ambient light levels. For example, the sensor may be anambient light sensor and may determine a level of ambient light in theenvironment where the security light is located. The ambient lightsensor may generate data indicating the ambient light level, andcommunicate that data to a controller of the security light. Thesecurity light may also include a processor that processes a signalreceived from the ambient light sensor in order to carry out variousfunctions based on the data received from the ambient light sensor.

In some embodiments of the security light 10 according to the presentinvention, the light source is movable between an on state and an offstate based on the data received from the ambient light sensor. Forexample, it is preferable that the light source not be activated whenthe ambient light level is sensed to be high, i.e., during the day orwhen the lighting in the environment is suitable to light the areaaround the security light 10. Therefore, the controller may cause thelight source to be positioned in the off state when the ambient lightsensor senses an ambient light level above a threshold level. Similarly,the light source of the security light 10 according to an embodiment ofthe present invention may be positioned in the on state when the ambientlight sensor senses an ambient light level below the threshold level.The brightness of the light emitted from the luminaire 10 may also bevariable depending on the time of day and the size of the objectdetected in the target area.

Referring now to flowchart 70 of FIG. 12, an automatic method forensuring that the luminaire 10 functions at minimal brightness is shown.Beginning at Block 72, the sensor 18 may check if the camera 12 isfunctioning properly (Block 74). If the camera 12 is not functioningproperly, the brightness may be increased at Block 76, and the sensor 18may check if the camera 12 is functioning properly again (Block 74). Ifthe camera 12 is functioning properly at Block 74, then it may bedetermined whether the last operation was to increase luminaire 10brightness. If the last operation was not to increase brightness, thenthe luminaire 10 may decrease brightness (Block 80) and the sensor 18may check if the camera 12 is functioning properly again at Block 74. Ifthe last operation was to increase brightness at Block 78, however, thenan optional delay may occur (Block 82). A delay may prevent unnecessarychecking of the brightness level and the functionality of the camera 12,wasting energy. It may then be determined whether a shutdown command wasreceived at Block 84. If a shutdown command is not received, the sensor18 may check for camera 12 functionality again at Block 74. If ashutdown command is received, the process may end at Block 86.

The method described in FIG. 12 may advantageously allow for the lightsource of the luminaire 10 to be dimmed to conserve power. The lightsource may, of course, be periodically checked to ensure that it is atits minimum effective brightness for the camera 12. Additionally, thisprocess may be done automatically or by a user, as discussed above.

The security light 10 may additionally include a time-keeping device incommunication with the controller to cause the light source 24 to turnon or off at certain times. This may advantageously prevent the lightsource 24 of the security light 10 from being used when it is notnecessary, such as a bright day. Additionally, the time-keeping devicemay be used to determine when the security light 10 calibrates itself,facilitating the optional delay mentioned above.

A method aspect of the present invention is illustrated in the flowchart500 of FIG. 17 and may include illuminating a target area upon sensingan object using a luminaire. The luminaire, as described above, mayinclude a wall mount, a driver circuit housing connected to the wallmount, a camera housing connected to the driver circuit housing, a lightsource housing connected to the camera housing, a light source arraycarried by the light source housing, the light source including aplurality of light sources, a prism carried by the light source housingadjacent the light source array, a heat sink in thermal communicationwith the light source array and carried by the light source housing, acamera carried by the camera housing, a sensor carried by the camerahousing and a driver circuit carried by the driver circuit housing.

From the start (Block 502) the method may include defining parametersfor a defined object and detecting an object (Block 504) to define adetected object. The method may further include determining (Block 506)if the detected object is a defined object. A defined object ispreferably an object that a user may define to take a particular action.For example, a defined object may be a vehicle of a user. The user maythen program the luminaire to take a particular action based ondetection of the defined object. The particular action may be to donothing, i.e., do not activate the luminaire. The particular action may,for example, be to illuminate the light source array of the luminairefor an amount of time. Alternatively, the particular action may be toilluminate the light source array at a particular brightness. Thepresent invention also contemplates that the luminaire may bepre-programmed with various objects that are common to someenvironments. For example, it is contemplated that the luminaire may beprogrammed to detect certain wildlife such as, for example, deer, dogs,cats, moose, antelopes, buffalo, horses, possums, armadillos, and verminin general. Accordingly, upon detection of such pre-programmed objects,the lighting device may take the particular action, which may beselected from the actions described above, or which may be any otheraction.

It is further contemplated that the luminaire according to embodimentsof the present invention may include a timer connected to thecontroller. The timer may provide time data to the controller to operatethe luminaire. For example, upon detection of an object that is adefined object, and upon cross-referencing various time data, theluminaire may activate to take an action selected from the actionsdescribed above. Further, it is contemplated that the luminaire, uponactivation, may emit light at a particular brightness depending on atime of day.

If it is determined at Block 506 that the detected object is a definedobject, then the particular action, described above, is taken at Block505. Thereafter, the luminaire continues to detect an object at Block504. If, however, it is determined at Block 506 that an object isdetected, but that the detected object is not a defined object, then theluminaire is activated to emit light in the direction of the detectedobject at Block 508. The luminaire may be activated to emit light in thedirection of the detected object in a number of ways. As describedabove, only certain light sources of the luminaire may be activated todirect light in the direction, or vicinity, of the detected object.Alternately, or in addition to, the light may be directed in thevicinity of the detected object by directional prisms of the optic.Additional information regarding directing the light emitted from thelight source is provided above.

At Block 510, it is determined whether or not the detected objectremains in the vicinity. The vicinity may be defined by a user, or maybepredefined within the luminaire. Further, those skilled in the art willappreciate that the vicinity is also referred to herein as the sensedarea, and may be adjusted by the user as desired. If it is determined atBlock 510 that the detected object means within the vicinity, and theluminaire remained activated at Block 508. If, however, it is determinedat Block 510 that the detected object is no longer within the vicinity,then the luminaire is deactivated at Block 512. Thereafter, the methodis ended at Block 514.

A skilled artisan will note that one or more of the aspects of thepresent invention may be performed on a computing device. The skilledartisan will also note that a computing device may be understood to beany device having a processor, memory unit, input, and output. This mayinclude, but is not intended to be limited to, cellular phones, smartphones, tablet computers, laptop computers, desktop computers, personaldigital assistants, etc. FIG. 15 illustrates a model computing device inthe form of a computer 110, which is capable of performing one or morecomputer-implemented steps in practicing the method aspects of thepresent invention. Components of the computer 110 may include, but arenot limited to, a processing unit 120, a system memory 130, and a systembus 121 that couples various system components including the systemmemory to the processing unit 120. The system bus 121 may be any ofseveral types of bus structures including a memory bus or memorycontroller, a peripheral bus, and a local bus using any of a variety ofbus architectures. By way of example, and not limitation, sucharchitectures include Industry Standard Architecture (ISA) bus, MicroChannel Architecture (MCA) bus, Enhanced ISA (EISA) bus, VideoElectronics Standards Association (VESA) local bus, and PeripheralComponent Interconnect (PCI).

The computer 110 may also include a cryptographic unit 125. Briefly, thecryptographic unit 125 has a calculation function that may be used toverify digital signatures, calculate hashes, digitally sign hash values,and encrypt or decrypt data. The cryptographic unit 125 may also have aprotected memory for storing keys and other secret data. In otherembodiments, the functions of the cryptographic unit may be instantiatedin software and run via the operating system.

A computer 110 typically includes a variety of computer readable media.Computer readable media can be any available media that can be accessedby a computer 110 and includes both volatile and nonvolatile media,removable and non-removable media. By way of example, and notlimitation, computer readable media may include computer storage mediaand communication media. Computer storage media includes volatile andnonvolatile, removable and non-removable media implemented in any methodor technology for storage of information such as computer readableinstructions, data structures, program modules or other data. Computerstorage media includes, but is not limited to, RAM, ROM, EEPROM, FLASHmemory or other memory technology, CD-ROM, digital versatile disks (DVD)or other optical disk storage, magnetic cassettes, magnetic tape,magnetic disk storage or other magnetic storage devices, or any othermedium which can be used to store the desired information and which canbe accessed by a computer 110. Communication media typically embodiescomputer readable instructions, data structures, program modules orother data in a modulated data signal such as a carrier wave or othertransport mechanism and includes any information delivery media. Theterm “modulated data signal” means a signal that has one or more of itscharacteristics set or changed in such a manner as to encode informationin the signal. By way of example, and not limitation, communicationmedia includes wired media such as a wired network or direct-wiredconnection, and wireless media such as acoustic, radio frequency,infrared and other wireless media. Combinations of any of the aboveshould also be included within the scope of computer readable media.

The system memory 130 includes computer storage media in the form ofvolatile and/or nonvolatile memory such as read only memory (ROM) 131and random access memory (RAM) 132. A basic input/output system 133(BIOS), containing the basic routines that help to transfer informationbetween elements within computer 110, such as during start-up, istypically stored in ROM 131. RAM 132 typically contains data and/orprogram modules that are immediately accessible to and/or presentlybeing operated on by processing unit 120. By way of example, and notlimitation, FIG. 8 illustrates an operating system (OS) 134, applicationprograms 135, other program modules 136, and program data 137.

The computer 110 may also include other removable/non-removable,volatile/nonvolatile computer storage media. By way of example only,FIG. 15 illustrates a hard disk drive 141 that reads from or writes tonon-removable, nonvolatile magnetic media, a magnetic disk drive 151that reads from or writes to a removable, nonvolatile magnetic disk 152,and an optical disk drive 155 that reads from or writes to a removable,nonvolatile optical disk 156 such as a CD ROM or other optical media.Other removable/non-removable, volatile/nonvolatile computer storagemedia that can be used in the exemplary operating environment include,but are not limited to, magnetic tape cassettes, flash memory cards,digital versatile disks, digital video tape, solid state RAM, solidstate ROM, and the like. The hard disk drive 141 is typically connectedto the system bus 121 through a non-removable memory interface such asinterface 140, and magnetic disk drive 151 and optical disk drive 155are typically connected to the system bus 121 by a removable memoryinterface, such as interface 150.

The drives, and their associated computer storage media discussed aboveand illustrated in FIG. 15, provide storage of computer readableinstructions, data structures, program modules and other data for thecomputer 110. In FIG. 15, for example, hard disk drive 141 isillustrated as storing an OS 144, application programs 145, otherprogram modules 146, and program data 147. Note that these componentscan either be the same as or different from OS 134, application programs135, other program modules 136, and program data 137. The OS 144,application programs 145, other program modules 146, and program data147 are given different numbers here to illustrate that, at a minimum,they may be different copies. A user may enter commands and informationinto the computer 110 through input devices such as a keyboard 162 andcursor control device 161, commonly referred to as a mouse, trackball ortouch pad. Other input devices (not shown) may include a microphone,joystick, game pad, satellite dish, scanner, or the like. These andother input devices are often connected to the processing unit 120through a user input interface 160 that is coupled to the system bus,but may be connected by other interface and bus structures, such as aparallel port, game port or a universal serial bus (USB). A monitor 191or other type of display device is also connected to the system bus 121via an interface, such as a graphics controller 190. In addition to themonitor, computers may also include other peripheral output devices suchas speakers 197 and printer 196, which may be connected through anoutput peripheral interface 195.

The computer 110 may operate in a networked environment using logicalconnections to one or more remote computers, such as a remote computer180. The remote computer 180 may be a personal computer, a server, arouter, a network PC, a peer device or other common network node, andtypically includes many or all of the elements described above relativeto the computer 110, although only a memory storage device 181 has beenillustrated in FIG. 15. The logical connections depicted in FIG. 15include a local area network (LAN) 171 and a wide area network (WAN)173, but may also include other networks. Such networking environmentsare commonplace in offices, enterprise-wide computer networks, intranetsand the Internet.

When used in a LAN networking environment, the computer 110 is connectedto the LAN 171 through a network interface or adapter 170. When used ina WAN networking environment, the computer 110 typically includes amodem 172 or other means for establishing communications over the WAN173, such as the Internet. The modem 172, which may be internal orexternal, may be connected to the system bus 121 via the user inputinterface 160, or other appropriate mechanism. In a networkedenvironment, program modules depicted relative to the computer 110, orportions thereof, may be stored in the remote memory storage device. Byway of example, and not limitation, FIG. 15 illustrates remoteapplication programs 185 as residing on memory device 181.

The communications connections 170 and 172 allow the device tocommunicate with other devices. The communications connections 170 and172 are an example of communication media. The communication mediatypically embodies computer readable instructions, data structures,program modules or other data in a modulated data signal such as acarrier wave or other transport mechanism and includes any informationdelivery media. A “modulated data signal” may be a signal that has oneor more of its characteristics set or changed in such a manner as toencode information in the signal. By way of example, and not limitation,communication media includes wired media such as a wired network ordirect-wired connection, and wireless media such as acoustic, RF,infrared and other wireless media. Computer readable media may includeboth storage media and communication media.

Referring now to FIG. 14, a model user interface 200 is shown in use ona remote device 35. The remote device 35 may advantageously be a mobilecomputing device, such as a smartphone or a laptop. The user interface200 may include a camera feed 202 from the camera 12, which maydemonstrate a brightness that is selected. A user may have the option tomanually adjust brightness using slider 204, or automatically adjustbrightness using button 206. Once the user is satisfied with the chosenbrightness, the user may select the OK button 208 to save theadjustments, or the cancel button 210 to cancel the adjustments. Thismodel user interface 200 is merely exemplary in nature, and is notintended to be limiting. Many other additional user interfaces 200 mayreadily come to mind of one skilled in the art having had the benefit ofthis disclosure, and are intended to be included herein. It is alsocontemplated that the user interface may be used to receive signals fromthe security light 10 indicating various conditions. For example, uponthe occurrence of an event, it is contemplated that the security light10 according to an embodiment of the present invention may send an alertto the user interface 200. Thereafter, it is contemplated that the userinterface may be used to monitor the target area. Further, it iscontemplated that the processor of the security light 10 may, inconnection with the camera 12, capture images that occur surrounding thetime of the event, and may stream those images to the user interface200.

Many modifications and other embodiments of the invention will come tothe mind of one skilled in the art having the benefit of the teachingspresented in the foregoing descriptions and the associated drawings.

What is claimed is:
 1. A luminaire comprising: a wall mount; a drivercircuit housing connected to the wall mount; a camera housing connectedto the driver circuit housing; a light source housing connected to thecamera housing; a light source array carried by the light sourcehousing, the light source array including a plurality of light sources;a plurality of prisms carried by the light source housing adjacent thelight source array and arranged to direct light emitted by the lightsource array to different axial directions, respectively; a heat sink inthermal communication with the light source array and carried by thelight source housing; a camera carried by the camera housing; a sensorcarried by the camera housing; and a driver circuit carried by thedriver circuit housing; wherein at least one of the camera and thesensor is configured to detect presence and vicinity of an object in atarget area; wherein at least one of the light sources in the lightsource array is configured to emit light to illuminate the vicinity ofthe object sensed in the target area, wherein the light source array isoperated to illuminate the target area; and wherein different ones ofthe light sources in the light source array corresponding to differentones of the prisms are selectively operated to illuminate differentportions of the target area in a direction of the object sensed in thetarget area.
 2. The luminaire according to claim 1 wherein the lightsources are each a light-emitting diode (LED).
 3. The luminaireaccording to claim 1 further comprising a controller wherein the sensorand camera generate data based on a sensed condition; and wherein thecontroller operates the light source array based upon the data andestablished parameters.
 4. The luminaire according to claim 3 furthercomprising a time-keeping device in communication with the controller;and wherein time-keeping device is configured to generate timing data tooperate the light source array based on the timing data.
 5. Theluminaire according to claim 3 further comprising a network connectionin communication with the controller; wherein data is transmittablethrough the network connection; and wherein the light source array isoperable responsive to the data transmitted through the network.
 6. Theluminaire according to claim 5 wherein the data is related to detectionof an object in the target area; and wherein the data is transmittedupon detection of the object in the target area.
 7. The luminaireaccording to claim 1 wherein the luminaire is programmable to recognizea defined object so as not to illuminate the target area upon detectingthe defined object.
 8. The luminaire according to claim 1 whereinbrightness of the light emitted from the light source array is variabledepending on at least one of the time of day, size of the objectdetected in the target area, and detection of a malfunction in at leastone of the camera and the sensor.
 9. The luminaire according to claim 1wherein: the light source housing comprises a first light source housingand a second light source housing; the light source array comprises afirst light source array including a plurality of light sources carriedby the first light source housing and a second light source arrayincluding a plurality of light sources carried by the second lightsource housing; the prisms comprise first prisms carried by the firstlight source housing adjacent the first light source array and secondprisms carried by the second light source housing adjacent the secondlight source array; the heat sink comprises a first heat sink in thermalcommunication with the first light source array and carried by the firstlight source housing a second heat sink in thermal communication withthe second light source array and carried by the second light sourcehousing; the camera housing includes a first camera housing associatedwith the first light source housing and a second camera housingassociated with the second light source housing; wherein the cameraincludes a first camera carried by the first camera housing and a secondcamera carried by the second camera housing; wherein the sensor includesa first sensor carried by the first camera housing and a second sensorcarried by the second camera housing; wherein the first and secondcameras and the first and second sensors are configured to detectpresence and vicinity of an object in a target area; wherein the firstand second light source arrays are positioned within the first andsecond light source housings respectively to minimize the overlap of thelight emitted from each light source array.
 10. A luminaire comprising:a first wall mount; a second wall mount; a first light source housingconnected to the first wall mount; a second light source housingconnected to the second wall mount; a first light source array carriedby the first light source housing, the first light source arrayincluding a plurality of light sources; a second light source arraycarried by the second light source housing, the second light sourcearray including a plurality of light sources; first prisms carried bythe first light source housing adjacent the first light source array andarranged to direct light emitted by the first light source array todifferent axial directions, respectively; a second prism carried by thesecond light source housing adjacent the second light source array; afirst heat sink in thermal communication with the first light sourcearray and carried by the first light source housing; a second heat sinkin thermal communication with the second light source array and carriedby the second light source housing; a first camera housing associatedwith the first light source housing; a second camera housing associatedwith the second light source housing; a first camera carried by thefirst camera housing; a second camera carried by the second camerahousing; a first sensor carried by the first camera housing; a secondsensor carried by the second camera housing; a controller incommunication with the first and second camera and the first and secondsensor; wherein at least one of the first camera, second camera, firstsensor and second sensor is configured to detect presence and vicinityof an object in a target area; wherein at least one of the light sourcesin the plurality of light sources is configured to emit light toilluminate the vicinity of the object sensed in the target area; whereinthe first light source array and second light source array are operatedto illuminate the target area; wherein different ones of the lightsources in the first light source array corresponding to different onesof the first prisms are selectively operated to illuminate differentportions of the target area in a direction of the object sensed in thetarget area; wherein the sensor and camera generate data based on asensed condition; and wherein the controller operates the light sourcearray based upon the data and established parameters.
 11. The luminaireaccording to claim 10 wherein the second prism is configured to directthe light emitted from the plurality of light sources in a direction ofthe object sensed in the target area.
 12. The luminaire according toclaim 10 wherein the light sources are each a light-emitting diode(LED).
 13. The luminaire according to claim 10 wherein the light sourcesin the second light source array are configured to emit light inmultiple directions so that upon sensing an object in the target area, aselected at least one light source is illuminable to emit light in thedirection of the sensed object.
 14. The luminaire according to claim 10further comprising a time-keeping device in communication with thecontroller; and wherein the time-keeping device is configured togenerate timing data to operate at least one of the first light sourcearray and the second light source array based on the timing data. 15.The luminaire according to claim 10 further comprising a networkinterface configured to enable communication with a network; wherein thecontroller is in communication with the network interface; wherein thenetwork interface is operable to receive communications across thenetwork and provide an instruction to the controller; and wherein thecontroller operates at least one light source of the plurality oflighting devices responsive to the instruction received from the networkinterface.
 16. The luminaire according to claim 15 wherein the data isrelated to detection of an object in the target area; and wherein thedata is transmitted upon detection of the object in the target area. 17.The luminaire according to claim 1 wherein the luminaire is programmableto recognize a defined object so as not to illuminate the target areaupon detecting the defined object.
 18. The luminaire according to claim10 wherein brightness of the light emitted from at least one of thefirst light source array is variable depending on at least one of thetime of day, size of the object detected in the target area, anddetection of a malfunction in at least one of the camera and the sensor.19. The luminaire according to claim 10 wherein upon detection of anobject in the target area, a selected at least one light source in thesecond light source array adjacent a selected prism section isilluminated to emit light in the direction of the object sensed in thetarget area.